High quality: Our trumpet mouthpieces are made of brass, offering a comfortable touch and excellent sound. The thick silver-plated surface is easy to wipe and maintain. Value Pack: The package includes 3 trumpet mouthpieces (1 x 7C, 1 x 5C, 1 x 3C). This set meets the needs of various playing situations and skill levels. Precise Size: The three sizes range from small to large, with precise specifications for outer rim, inner cup, inner diameter, and backbore. Engraved markings allow for quick identification of each type. Beginners are recommended to start with the 7C, which produces sound more easily. As lip strength improves with practice, players can progress to the 5C and then the 3C, which is commonly used by professional trumpet players. Application: These mouthpieces are compatible with most standard trumpets and suitable for use in schools, concert halls, bars, homes, and band practice areas. Color: Silver Material: Brass Package Contents: 1 x 7C Mouthpiece, 1 x 5C Mouthpiece, 1 x 3C Mouthpiece. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement tolerances may vary by +/- 1-3 cm.